there was an assumption that function calls would terminate early with
an error given 'set -e' was being used. this is true, but only when the
function is part of a simple command otherwise it won't inherit the
behavior. many of the call sites use 'func || return 1' syntax meaning
the function would continue to completion return with the status of the
last command executed. this hid errors with e.g., eval statements. inner
calls within the functions are now explicitly tested for failure.
BUG=aomedia:2669
Change-Id: Ie33a5ac4023dcc800bd302cb8cc54c6c3f2282f5
Specifying the --prefix command line arg executes all test programs within the
context of the prefix string, which is assigned to VPX_TEST_PREFIX.
All test functions updated to include VPX_TEST_PREFIX in their eval command.
Change-Id: I2e215cc8f216048edf3269db02a6b5660fe32318
James Zern
Tom Finegan